Care should be taken to distinguish between two different uses of this word. The "fear of the Lord" is frequently spoken of as part of man's duty (e.g., Ps. 111: 10; Eccl. 12: 13; Isa. 11: 2-3; Luke 1: 50); it is also described as "godly fear" (Heb. 12: 28). In such passages fear is equivalent to reverence, awe, worship, and is therefore an essential part of the attitude of mind in which we ought to stand toward the All-holy God. On the other hand fear is spoken of as something unworthy of a child of God, something that "perfect love casteth out" (1 Jn. 4: 18). The first effect of Adam's sin was that he was afraid (Gen. 3: 10). Sin destroys that feeling of confidence God's child should feel in a loving Father, and produces instead a feeling of shame and guilt. Ever since the Fall God has been teaching men not to fear, but with penitence to ask forgiveness in full confidence of receiving it.